Old Greenwich, Connecticut 

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Weather in Old Greenwich, Connecticut

The most pleasant months of the year for Old Greenwich are June, August and September. In Old Greenwich, there are 5 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for Old Greenwich with an average high temperature of 83.2°, which ranks it as about average compared to other places in Connecticut. February is the snowiest month in Old Greenwich with 9.0 inches of snow, and 6 months of the year have significant snowfall. August is the most humid month, though humidity is low for most of the year.


Today's Weather - Old Greenwich, CT

4 PM PST

Showers And Thunderstorms

74°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
TonightShowers And Thunderstorms64° / 84°S 6 mph
Saturday NightSlight Chance Showers And Thunderstorms then Mostly Clear59° / 74°NW 8 to 13 mph
Sunday NightMostly Clear55° / 75°N 7 to 12 mph
Monday NightMostly Clear59° / 80°W 2 to 6 mph
Tuesday NightMostly Clear62° / 77°S 8 mph
Wednesday NightPartly Cloudy then Slight Chance Rain Showers62° / 75°S 6 to 13 mph
Thursday NightChance Rain Showers61° / 75°SE 6 to 9 mph

Weather Highlights

Summer High: the July high is around 83 degrees
Winter Low: the January low is 22
Rain: averages 51 inches of rain a year
Snow: averages 30 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the Old Greenwich area is 7.1 (10=best), which means it is more comfortable than most places in Connecticut.

7.1 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.


Average Monthly High and Low (°F)
HighLow
January37° 22°
February41° 24°
March49° 30°
April60° 40°
May70° 49°
June79° 59°
July83° 64°
August82° 63°
September74° 56°
October63° 45°
November53° 36°
December42° 27°
Hot, Freezing, Rainy, Snowy Days: Old Greenwich
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January026105
February02493
March018112
April04120
May00120
June20110
July40100
August20100
September10100
October0290
November010110
December022103

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.


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ZIP CODES IN OLD GREENWICH, CONNECTICUT
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